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E.g., 12/13/2017
E.g., 12/13/2017
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  • News

    Some high-temperature superconductors might not be so odd after all

    A misfit gang of superconducting materials may be losing their outsider status.

    Certain copper-based compounds superconduct, or transmit electricity without resistance, at unusually high temperatures. It was thought that the standard theory of superconductivity, known as Bardeen-Cooper-Schrieffer theory, couldn’t explain these oddballs. But new evidence suggests that the standard theory...

    12/08/2017 - 07:00 Condensed Matter, Physics, Materials
  • News

    Microwaved, hard-boiled eggs can explode. But the bang isn’t the worst part.

    Hard-boiled eggs are a dish best served cold.

    When quickly reheated in a microwave and then pierced, the picnic staple can explode with a loud bang in a shower of hot, rubbery shrapnel. But this blast is far more likely to make a hot mess than hurt your hearing, according to research presented December 6 at the Acoustical Society of America meeting in New Orleans.

    That distinction...

    12/07/2017 - 07:00 Physics
  • Science Visualized

    How freezing a soap bubble turns it into a ‘snow globe’

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    Frigid air can transform an ordinary soap bubble into a glittery “snow globe.” No shaking required.

    When a bubble is placed in a freezer set to –20° Celsius, delicate ice crystals swirl gracefully across the soapy film, gradually growing larger until the bubble freezes solid. The phenomenon can also be observed when blowing soap bubbles outside in wintry weather....

    12/05/2017 - 15:00 Physics, Materials
  • News

    In a first, Galileo’s gravity experiment is re-created in space

    Galileo’s most famous experiment has taken a trip to outer space. The result? Einstein was right yet again. The experiment confirms a tenet of Einstein’s theory of gravity with greater precision than ever before.

    According to science lore, Galileo dropped two balls from the Leaning Tower of Pisa to show that they fell at the same rate no matter their composition. Although it seems...

    12/04/2017 - 06:00 Physics
  • News

    Collision illuminates the mysterious makeup of neutron stars

    On astrophysicists’ charts of star stuff, there’s a substance that still merits the label “here be dragons.” That poorly understood material is found inside neutron stars — the collapsed remnants of once-mighty stars — and is now being mapped out, as scientists better characterize the weird matter.

    The detection of two colliding neutron stars, announced in October (SN: 11/11/17, p. 6),...

    12/01/2017 - 07:00 Physics, Astronomy
  • Science Ticker

    Colliding black holes are reported for a fifth time

    Spacetime ripples from black holes are becoming routine.

    For a fifth time, scientists have reported the detection of two colliding black holes via their gravitational waves, tiny vibrations that warp the fabric of spacetime. Unlike previous gravitational wave detections, which were heralded with news conferences often featuring panels of scientists squinting at journalists under bright...

    11/16/2017 - 11:40 Physics, Astronomy
  • News

    Why the wiggle in a crowd’s walk can put a wobble in a bridge

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    Some bridges could really put a swing in your step.

    Crowds walking on a bridge can cause it to sway — sometimes dangerously. Using improved simulations to represent how people walk, scientists have now devised a better way to calculate under what conditions this swaying may arise, researchers report November 10 online in Science Advances.

    When a bridge —...

    11/10/2017 - 14:00 Physics
  • News

    Mystery void is discovered in the Great Pyramid of Giza

    High-energy particles from outer space have helped uncover an enigmatic void deep inside the Great Pyramid of Giza.

    Using high-tech devices typically reserved for particle physics experiments, researchers peered through the thick stone of the largest pyramid in Egypt for traces of cosmic rays and spotted a previously unknown empty space. The mysterious cavity is the first major structure...

    11/02/2017 - 08:00 Archaeology, Physics, Technology
  • News in Brief

    This is the lightest robot that can fly, swim and take off from water

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    A new insect-inspired tiny robot that can move between air and water is a lightweight.

    Weighing the same as about six grains of rice, it is the lightest robot that can fly, swim and launch itself from water, an international team of researchers reports October 25 in Science Robotics. The bot is about 1,000 times lighter than other previously developed aerial-aquatic...

    10/25/2017 - 16:05 Robotics, Technology, Physics
  • News in Brief

    Light’s weird dual nature weathers trip to space and back

    Light is two-faced: Sometimes it behaves like a wave, sometimes like a particle. Now, scientists have shown that light’s shifty disposition persists even after trekking thousands of kilometers into space and back again, researchers report October 25 in Science Advances.

    Depending on how light is measured, it can either be particle-like, lighting up a camera pixel, for example, or...

    10/25/2017 - 14:00 Quantum Physics, Physics